'It's hard to overstate how big a year it was for Mr. Mason. His company went public, he became a billionaire, and the daily-coupon-deals phenomenon he pioneered has seemingly swept the nation.'-Andrew Ross Sorkin, The New York Times DealBook, January 2, 2012Groupon's Biggest Deal Ever is the exclusive, behind-the-scenes account of the incredible rise of discount coupon giant Groupon and the compelling story of its offbeat founder, Andrew Mason, as he created a juggernaut of online commerce and ignited a consumer revolution that is disrupting how people shop all over the world. Love him for saving you 50 percent on last night's Indian dinner or hate him for cashing in big when he could be losing millions for merchants and investors alike, Mason-Groupon's thirtysomething founder and CEO-made an incredible gamble when he turned down Google's $6 billion buyout offer to go it alone. The experts thought he was insane. Groupon was little more than two years old and staffed from top to bottom with twentysomethings. The wild ride couldn't last, but Mason thought otherwise, and with dreams of a potential IPO that could be massive, he liked his odds. But did he make the right decision, or did he blow a chance to continue to grow 'the fastest growing company in history'? Is Mason an Internet genius, or is he sitting on another bubble that could burst at any moment?